117 citations · 522 across the 23 of their papers we have counts for
24 papers
Tulva: Practical Asynchronous Threshold FHE
Valerio Cini, Antonio Guimarães, Russell W. F. Lai +2
We present Tulva, a practical threshold FHE scheme which equips a base FHE scheme with an asynchronous threshold decryption mechanism in a modular way. Our scheme simultaneously (1…
Tunable state-dependent interactions in collisionally stable mixtures of polar molecules
Hubert J. Jóźwiak, Hanwei Yang, Eugen Dizer +2
We propose encoding a pseudo-spin- system in the ground () and first excited () vibrational states of polar molecules. Double microwave shielding simultaneously shie…
Polaronic hybridization of atoms, dimers and trimers in a Bose-Einstein condensate
Carsten Robens, Arthur Christianen, Alexander Y. Chuang +4
The Bose polaron problem of an impurity immersed in a Bose-Einstein condensate (BEC) has been predicted to feature strong correlations arising from bound states of multiple bosons…
Microscopic Model of Exciton Polarons in 2D Wigner Crystals
Haydn S. Adlong, Eugen Dizer, Richard Schmidt +2
Monolayer transition-metal dichalcogenides (TMDs) provide a platform for realizing Wigner crystals and enable their detection via exciton spectroscopy. We develop a microscopic the…
Interactions of electrons and Rydberg excitons in two-dimensional semiconductors
Arthur Christianen, Anna M. Seiler, Alperen Tüğen +1
Rydberg excitons in two-dimensional semiconductors provide sensitive and non-destructive probes of physics in proximal sample layers that host correlated electronic states. In part…
Wigner polarons reveal Wigner crystal dynamics in a monolayer semiconductor
Lifu Zhang, Liuxin Gu, Haydn S. Adlong +12
Wigner crystals, lattices made purely of electrons, are a quintessential paradigm of studying correlation-driven quantum phase transitions. Despite decades of research, the interna…
Asymmetric trions in monolayer transition metal dichalcogenides
Arthur Christianen, Atac Imamoglu
Exciton spectroscopy serves as a sensitive probe of electronic states in two-dimensional semiconductors. A prominent feature in optical spectra is the trion peak arising from the b…
Optical Injection and Detection of Long-Lived Interlayer Excitons in van der Waals Heterostructures
Alperen Tüğen, Anna M. Seiler, Arthur Christianen +4
Interlayer excitons in semiconducting bilayers separated by insulating hBN layers constitute a promising platform for investigation of strongly correlated bosonic phases. Here, we…
Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture
Alexander Y. Chuang, Huan Q. Bui, Arthur Christianen +5
The quantum mechanics of three interacting particles gives rise to interesting universal phenomena, such as the staircase of Efimov trimers predicted in the context of nuclear phys…
Confined Trions and Mott-Wigner States in a Purely Electrostatic Moiré Potential
Natasha Kiper, Haydn S. Adlong, Arthur Christianen +4
Moiré heterostructures consisting of transition metal dichalcogenide (TMD) hetero- and homobilayers have emerged as a promising material platform to study correlated electronic sta…
Phase-Sensitive Quantum Measurement without Controlled Operations
Yilun Yang, Arthur Christianen, Mari Carmen Bañuls +2
Many quantum algorithms rely on the measurement of complex quantum amplitudes. Standard approaches to obtain the phase information, such as the Hadamard test, give rise to large ov…
Phase diagram for strong-coupling Bose polarons
Arthur Christianen, J. Ignacio Cirac, Richard Schmidt
Important properties of complex quantum many-body systems and their phase diagrams can often already be inferred from the impurity limit. The Bose polaron problem describing an imp…
Simulating prethermalization using near-term quantum computers
Yilun Yang, Arthur Christianen, Sandra Coll-Vinent +5
Quantum simulation is one of the most promising scientific applications of quantum computers. Due to decoherence and noise in current devices, it is however challenging to perform…
Tomography of Feshbach Resonance States
Baruch Margulis, Karl P. Horn, Daniel M. Reich +8
Feshbach resonances are fundamental to interparticle interactions and become particularly important in cold collisions with atoms, ions, and molecules. Here we present the detectio…
Four-body singlet potential energy surface for reactions of calcium monofluoride
Dibyendu Sardar, Arthur Christianen, Hui Li +1
A full six-dimensional Born-Oppenheimer singlet potential energy surface is constructed for the reaction CaF + CaF CaF + Ca using a multireference configuration i…
Ultracold Sticky Collisions: Theoretical and Experimental Status
Roman Bause, Arthur Christianen, Andreas Schindewolf +2
Collisional complexes, which are formed as intermediate states in molecular collisions, are typically short-lived and decay within picoseconds. However, in ultracold collisions inv…
Probing molecular spectral functions and unconventional pairing using Raman spectroscopy
Oriana K. Diessel, Jonas von Milczewski, Arthur Christianen +1
An impurity interacting with an ultracold Fermi gas can form either a polaron state or a dressed molecular state in which the impurity forms a bound state with one gas particle. Th…
From Efimov Physics to the Bose Polaron using Gaussian States
Arthur Christianen, J. Ignacio Cirac, Richard Schmidt
Since the Efimov effect was introduced in 1970, a detailed theoretical understanding of Efimov physics has been developed in the few-body context. However, it has proven to be chal…
Chemistry of a light impurity in a Bose-Einstein condensate
Arthur Christianen, J. Ignacio Cirac, Richard Schmidt
In ultracold atomic gases, a unique interplay arises between phenomena known from condensed matter physics, few-body physics and chemistry. Similar to an electron in a solid, an im…
Lossy Quantum Defect Theory of Ultracold Molecular Collisions
Arthur Christianen, Gerrit C. Groenenboom, Tijs Karman
We consider losses in collisions of ultracold molecules described by a simple statistical short-range model that explicitly accounts for the limited lifetime of classically chaotic…
Collisions of ultracold molecules in bright and dark optical dipole traps
Roman Bause, Andreas Schindewolf, Renhao Tao +7
Understanding collisions between ultracold molecules is crucial for making stable molecular quantum gases and harnessing their rich internal degrees of freedom for quantum engineer…
Photo-induced two-body loss of ultracold molecules
Arthur Christianen, Martin W. Zwierlein, Gerrit C. Groenenboom +1
The lifetime of nonreactive ultracold bialkali gases was conjectured to be limited by sticky collisions amplifying three-body loss. We show that the sticking times were previously…
A quasiclassical method for calculating the density of states of ultracold collision complexes
Arthur Christianen, Tijs Karman, Gerrit C. Groenenboom
We derive a quasiclassical expression for the density of states (DOS) of an arbitrary, ultracold, -atom collision complex, for a general potential energy surface (PES). We estab…
Exploring universal and non-universal regimes of trimers from three-body interactions in one-dimensional lattices
Arthur Christianen, John Sous
We investigate the formation of trimers in an infinite one-dimensional lattice model of hard-core particles with single-particle hopping and and nearest-neighbour two-body …